{
  "manageEntity": {
    "action": "Update",
    "entityId": "685833877",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x74787b419b10f2457115c22bc301972d441539ce8c991c402c8afca1467cbbea",
    "signature": "0x9dfc49fc5743f5c15f5f1e9cb9fbcd0492f7474085c9817fa53efe4e24047d445f5cc2c67fad69f1f7681b1e7e0adf46f30843ed507a75257ef9535390f28e731c",
    "signer": "0x03Dd69dd20ba5dc4fDF1ed0498D3847c31e64CA3",
    "userId": "685833877"
  }
}